Nearly lost in the excitement were superb five-under 65s from Jason Day and Scott Hend, vaulting the Australian duo onto the leaderboard in a share of 13th at even par. While he's finally contending in his favorite major, he will forever be known for breaking the 63 mark.
The South African shot an 8-under-62 Saturday, the lowest score ever in a major championship.
The stunning round from Grace jumped him from a tie for 45th to a tie for fourth on moving day.
In this case, Grace struck the ball beautifully from beginning to end. He overshot the 18th green onto the apron, but putted close to the hole.
"You never know what's going to happen tomorrow but I figure I'm going to need to shoot, probably, nine under". "I played really good, really solid from tee to green".
Two years ago, low scoring in majors was as commonplace as a regular event on the PGA Tour.
"I honestly didn't", he said.
"To get to 12 under, I think that would be a decent number to sit in the clubhouse at".
"It's something I really enjoyed and something I'll remember forever, definitely", said the South African golfer after signing his card.
Grace, whose playing partner Jason Dufner shot a 66, insisted after his round that he had no idea he had made history. Having holed a monstrously long birdie putt at the 16th, he picked up another shot at the par-five 17th to lay his platform for history. It was a special round from the start and I just wanted to make more birdies.
"But obviously I knocked in the two-footer or three-footer".
"Zack came up and said, 'You're in the history books, '" revealed Grace.
Though still in a state of disbelief, Grace was able to realize the gravity of the situation.
"It was a special day". Miller dinged the accomplishment in what was more than a backhanded compliment, pejoratively referring to the easier U.S. Open setup in Wisconsin as a "Greater Milwaukee Open".